The new cards are part of Lexar's "Armor" lineup, which already includes ruggedized portable SSDs and other gear designed to withstand harsh conditions. The two new stainless...
Honestly not that stupid. I have seen SD cards break. And for certain applications, like professional photography, having a more physically reliable medium is a good thing.
But I think cameras with dual SD cards for redundancy are more important.
How? Your slot is designed to fit them. A damaged card having abnormal dimensions is way more likely to harm your slot than the card that isn't supposed to bend not bending.